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How to Make Mac Turn Off or On Automatically

I've been searching for the settings to turn my 2021 iMac on and off at a preset schedule.

All my previous Macs (1986 to 2021😁) had an "easy-to-find" setting for this. What the heck?

iMac, OS X 10.11

Posted on Dec 17, 2022 7:40 PM

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Posted on Dec 18, 2022 8:03 AM

That’s possible, I was referring to the link from @dialabrain which referred only to wake & sleep. It also contained a dead link to pmset, unfortunately.


Irrespective, here’s the pmset command with all the options, should work (prepend sudo):


pmset schedule [cancel] {sleep | wake | poweron | shutdown | wakeorpoweron}
               "MM/dd/yy HH:mm:ss" [owner]

      pmset repeat cancel

      pmset repeat {sleep | wake | poweron | shutdown | wakeorpoweron}
               weekdays "MM/dd/yy HH:mm:ss"
               Where weekdays is a subset of MTWRFSU ("M" and "MTWRF" are valid strings)


22 replies

How to Make Mac Turn Off or On Automatically

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